Thousands of U.S. dollars December 31, 2013 Acquisition cost Carrying value Unrealized gain (loss) Securities whose carrying value exceeds their acquisition cost: Stock......................................................... $ 72,246 $137,494 $65,248 Securities whose acquisition cost exceeds their carrying value: Stock......................................................... 15,016 13,228 (1,788) Other......................................................... 218,237 218,237 . Total................................................................. $305,499 $368,960 $63,460 Millions of yen December 31, 2012 Acquisition cost Carrying value Unrealized gain (loss) Securities whose carrying value exceeds their acquisition cost: Stock......................................................... \ 3,836 \ 6,738 \2,902 Securities whose acquisition cost exceeds their carrying value: Stock......................................................... 5,024 4,238 (786) Other......................................................... 14,000 14,000 . Total................................................................. \22,861 \24,977 \2,116 18. Derivative Transactions Derivative transactions to which hedge accounting is applied. Derivative transactions to which the deferred hedge accounting method is applied as of December 31, 2013 and 2012. Millions of yen 2013 Contract amount Contract amount over one year Fair value Special treatment for interest rate swaps: Interest rate swaps (Hedged item: Long-term debt) Receive floating and pay fixed.... \1,269 \1,171 (*) Thousands of U.S. dollars 2013 Contract amount Contract amount over one year Fair value Special treatment for interest rate swaps: Interest rate swaps (Hedged item: Long-term debt) Receive floating and pay fixed.... $12,041 $11,111 (*) Millions of yen 2012 Contract amount Contract amount over one year Fair value Special treatment for interest rate swaps: Interest rate swaps (Hedged item: Long-term debt) Receive floating and pay fixed.... \3,664 \541 (*) (*) Because the interest rate swaps are accounted for with long-term debt as the hedged item, the fair value of the swaps is included in the fair value of the long-term debt. 19. Short-Term Bank Loans and Long-Term Debt Short-term bank loans, principally unsecured, consisted of notes payable to banks bearing annual interest rates of 0.66% and 0.79% at December 31, 2013 and 2012, respectively. Long-term debt at December 31, 2013 and 2012 consisted of the following: Millions of yen Thousands of U.S. dollars 2013 2012 2013 Loans with collateral from banks, insurance companies and other, bearing annual interest rates of 0.83% and 0.85% for current portion of long-term debt and lease obligations, and long-term debt and lease obligations less current portion at December 31, 2013, respectively.............. \10,915 \10,039 $103,568 10,915 10,039 103,568 Less: current portion................................... (4,928) (3,893) (46,762) \ 5,986 \ 6,145 $ 56,805 Assets pledged as collateral for short-term bank loans and long-term debt at December 31, 2013 and 2012 were as follows: Millions of yen Thousands of U.S. dollars 2013 2012 2013 Property, plant and equipment at net book value....................................... \18,963 \17,557 $179,939 The aggregate annual maturities of long-term debt and lease obligations subsequent to December 31, 2014 were summarized as follows: Years ending December 31, Millions of yen Thousands of U.S. dollars 2015.................................................................................................... \ 589 $ 5,595 2016.................................................................................................... 421 3,999 2017.................................................................................................... 179 1,703 2018.................................................................................................... 4,165 39,522 2019 and there after................................................................. 630 5,984 20. Retirement Benefit Plans for Employees The Company and its consolidated subsidiaries have a defined benefit plan consisting of a defined benefit corporate pension plan and a retirement lump-sum payment plan covering substantially all employees who are entitled to lump-sum or annuity payments, the amounts of which are determined by reference to their basic rates of pay, length of service and the conditions under which termination occurs. Further, their defined contribution plan consists of a defined contribution pension plan. A retirement benefit trust has also been established. The following table sets forth the funded and accrued status of the plans, and the amounts recognized in the consolidated balance sheets as of December 31, 2013 and 2012 related to the Company’s and the consolidated subsidiaries’ defined benefit plans: Millions of yen Thousands of U.S. dollars 2013 2012 2013 Projected benefit obligation................. \ (9,646) \(10,320) $ (91,535) Plan assets at fair value............................. 13,000 10,503 123,353 Funded status................................................. 3,353 182 31,818 Unrecognized actuarial gain................. 62 2,265 593 Unrecognized prior service cost......... (731) (137) (6,943) Prepaid pension cost................................. (2,997) (2,764) (28,443) Accrued retirement benefits................. \ (313) \ (454) $ (2,974) Toagosei Co., Ltd. 43